SQL Query Error (SELECT i.*, its.name as item_status,p.name as publisher, i.price as clientprice, su.name as subject, c.name as category , s.name as subcategory
FROM (items i
left join subjects su on (i.ref_subject = su.id)
left join publishers p on (i.ref_publisher = p.id),
item_statuses its, categories c, subcategories s)
WHERE its.id=i.ref_item_status
AND c.id=i.ref_category
AND s.id=i.ref_subcategory AND i.ref_category = '1' AND i.ref_subcategory = '16' and its.id = '1' ORDER BY i.title,i.download_date desc, i.ref_category LIMIT -20, 20) : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-20, 20' at line 9